<?php

class TopicController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view','more'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array(Yii::app()->params['admin']),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{   
		$model=$this->loadModel($id);
		$pageCount = new TopicVisit();
		$count = $pageCount->findByAttributes( array(
			'ip'=> Yii::app()->request->userHostAddress,
			'tid'=>$id,
		));
		
		if ($count){
			$time = time() - $count->time;
			if ($time > DefineBox::TIME_COUNTVISIT_LIMIT){
				$model->visit++;
				$model->save();
				// 更新页面统计
				$count->time = time();
				$count->save();
				
			}
		}
		else{
			$pageCount->ip =  Yii::app()->request->userHostAddress;
			$pageCount->tid = $id;
			$pageCount->time = time();
			$pageCount->save();
			$model->visit++;
			$model->save();
		}

		//回复内容
		$post= new Post();
	    if(isset($_POST['Post']))
		{
			$post->attributes=$_POST['Post'];
			$post->uid=Yii::app()->user->id;
			$post->topic_id=$id;
			$post->post_time=time();
			if($post->save()){
				$this->redirect(array('view','id'=>$id));
			}
			//给用户加积分
			$post->uid = Yii::app()->user->id;
			$user= User::model()->findByPk($post->uid);
			$user->score=$user->score+DefineBox::USER_SCORE_CPOST;
			$user->save();
		}
		$dataProvider=new CActiveDataProvider('Post', array(
				'criteria'=>array(
					'condition'=>'topic_id = :Id',
					'params'=>array(':Id'=>$id),
					'order'=>'id ASC',
				),
		));	
		$this->render('view',array(
			'model'=>$model,
		    'post'=>$post,
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Topic;

		if(isset($_POST['Topic']))
		{
			$model->attributes=$_POST['Topic'];
			$model->uid = Yii::app()->user->id;
			$model->create_time = time();
			if($model->save())
				 //给用户加积分
				$user= User::model()->findByPk($model->uid);
				$user->score=$user->score+DefineBox::USER_SCORE_CTOPIC;
				$user->save();
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);
		
		if(isset($_POST['Topic']))
		{
			$model->attributes=$_POST['Topic'];
			$model->update_time = time();
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();
			
			//用户积分
				$model->uid = Yii::app()->user->id;
				$user= User::model()->findByPk($model->uid);
				$user->score=$user->score+DefineBox::USER_SCORE_DTOPIC;
				$user->save();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Topic');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));	
	}
	
	/**
	 * 对社区里分类增加了更多视图
	 */
	public function actionMore(){
		$model = new Topic;
		
		//等待创建内容
		$dataProvider = Node::model()->findAll('status = 1 order by id DESC');
		//投票区
		$dataVote = Poll::model()->findAll('status = 1 order by id DESC');
		
		//关于网站
		$dataBulid = Topic::model()->findAll('tid = 7 order by create_time DESC');
		//话题
		$dataNewtheme = Topic::model()->findAll('tid = 0 order by create_time DESC');

		//进行渲染
		$this->render('more',array(
			'dataProvider'=>$dataProvider,
			'dataVote'=>$dataVote,
			'dataBulid'=>$dataBulid,
			'dataNewtheme'=>$dataNewtheme,
			'type'=>HandleBox::getTopicType($model->tid),
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Topic('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Topic']))
			$model->attributes=$_GET['Topic'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=Topic::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='topic-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
